The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 18, 2001
Filed:
Nov. 15, 2000
Applicant:
Inventors:
Robert A. Gatzen, Newington, CT (US);
Donald R. Dressler, Glastonbury, CT (US);
Assignee:
J. D'Addario & Company, Inc., Farmingdale, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10D 1/302 ;
U.S. Cl.
CPC ...
G10D 1/302 ;
Abstract
An externally mounted adjustable damping system for drumhead allows the sound characteristics of a drum to be easily adjusted without disassembly of the instrument. The externally mounted adjustable damping system includes a mounting fixture adhesively attached to the outside surface of a drumhead. The mounting fixture defines an annular channel for receiving damping elements of various materials and configurations. The damping elements may be rings or segments of vibration absorbent material placed to achieve the desired sound pattern from the instrument.